noun 1.an escape from prison, especially by forcible means.
2.Digital Technology.a.an instance of gaining access to the
operating system of a smartphone, tablet, etc., especially one manufactured by Apple.
b.a software program or piece of hardware used to accomplish this: You'll need a jailbreak to run unauthorized apps.
c.an instance of circumventing restrictions on access to any computer system or digital content.
verb (used with object) 3.Digital Technology. to gain access to the operating system of (a smartphone, tablet, etc., especially an Apple device), usually in order to run modified or unauthorized software. Compare
root1 ( def 22a ).
verb (used without object) 4.Digital Technology. to engage in this practice:
Manufacturers are trying to prevent jailbreaking. Compare
root1 ( def 24 ).